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* [asahilinux:bits/070-audio 40/40] sound/soc/codecs/cs42l84.c:1062:34: warning: unused variable 'cs42l84_of_match'
@ 2023-04-23 22:32 kernel test robot
  0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2023-04-23 22:32 UTC (permalink / raw)
  To: Hector Martin; +Cc: llvm, oe-kbuild-all

tree:   https://github.com/AsahiLinux/linux bits/070-audio
head:   04466302f3a6cb36c4784f371777f254644bfff3
commit: 04466302f3a6cb36c4784f371777f254644bfff3 [40/40] fixup! wip: ASoC: cs42l84: Start new codec driver
config: hexagon-randconfig-r045-20230424 (https://download.01.org/0day-ci/archive/20230424/202304240619.0SB66hSu-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project 437b7602e4a998220871de78afcb020b9c14a661)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/AsahiLinux/linux/commit/04466302f3a6cb36c4784f371777f254644bfff3
        git remote add asahilinux https://github.com/AsahiLinux/linux
        git fetch --no-tags asahilinux bits/070-audio
        git checkout 04466302f3a6cb36c4784f371777f254644bfff3
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash sound/soc/codecs/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202304240619.0SB66hSu-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from sound/soc/codecs/cs42l84.c:21:
   In file included from include/linux/i2c.h:19:
   In file included from include/linux/regulator/consumer.h:35:
   In file included from include/linux/suspend.h:5:
   In file included from include/linux/swap.h:9:
   In file included from include/linux/memcontrol.h:13:
   In file included from include/linux/cgroup.h:26:
   In file included from include/linux/kernel_stat.h:9:
   In file included from include/linux/interrupt.h:11:
   In file included from include/linux/hardirq.h:11:
   In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
   In file included from include/asm-generic/hardirq.h:17:
   In file included from include/linux/irq.h:20:
   In file included from include/linux/io.h:13:
   In file included from arch/hexagon/include/asm/io.h:334:
   include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           val = __raw_readb(PCI_IOBASE + addr);
                             ~~~~~~~~~~ ^
   include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
                                                           ~~~~~~~~~~ ^
   include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu'
   #define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
                                                     ^
   In file included from sound/soc/codecs/cs42l84.c:21:
   In file included from include/linux/i2c.h:19:
   In file included from include/linux/regulator/consumer.h:35:
   In file included from include/linux/suspend.h:5:
   In file included from include/linux/swap.h:9:
   In file included from include/linux/memcontrol.h:13:
   In file included from include/linux/cgroup.h:26:
   In file included from include/linux/kernel_stat.h:9:
   In file included from include/linux/interrupt.h:11:
   In file included from include/linux/hardirq.h:11:
   In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
   In file included from include/asm-generic/hardirq.h:17:
   In file included from include/linux/irq.h:20:
   In file included from include/linux/io.h:13:
   In file included from arch/hexagon/include/asm/io.h:334:
   include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
                                                           ~~~~~~~~~~ ^
   include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu'
   #define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
                                                     ^
   In file included from sound/soc/codecs/cs42l84.c:21:
   In file included from include/linux/i2c.h:19:
   In file included from include/linux/regulator/consumer.h:35:
   In file included from include/linux/suspend.h:5:
   In file included from include/linux/swap.h:9:
   In file included from include/linux/memcontrol.h:13:
   In file included from include/linux/cgroup.h:26:
   In file included from include/linux/kernel_stat.h:9:
   In file included from include/linux/interrupt.h:11:
   In file included from include/linux/hardirq.h:11:
   In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
   In file included from include/asm-generic/hardirq.h:17:
   In file included from include/linux/irq.h:20:
   In file included from include/linux/io.h:13:
   In file included from arch/hexagon/include/asm/io.h:334:
   include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           __raw_writeb(value, PCI_IOBASE + addr);
                               ~~~~~~~~~~ ^
   include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
                                                         ~~~~~~~~~~ ^
   include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
                                                         ~~~~~~~~~~ ^
>> sound/soc/codecs/cs42l84.c:1062:34: warning: unused variable 'cs42l84_of_match' [-Wunused-const-variable]
   static const struct of_device_id cs42l84_of_match[] = {
                                    ^
   7 warnings generated.


vim +/cs42l84_of_match +1062 sound/soc/codecs/cs42l84.c

9e86ecb7bce72a Martin Povišer 2022-06-29  1061  
9e86ecb7bce72a Martin Povišer 2022-06-29 @1062  static const struct of_device_id cs42l84_of_match[] = {
9e86ecb7bce72a Martin Povišer 2022-06-29  1063  	{ .compatible = "cirrus,cs42l84", },
9e86ecb7bce72a Martin Povišer 2022-06-29  1064  	{}
9e86ecb7bce72a Martin Povišer 2022-06-29  1065  };
9e86ecb7bce72a Martin Povišer 2022-06-29  1066  MODULE_DEVICE_TABLE(of, cs42l84_of_match);
9e86ecb7bce72a Martin Povišer 2022-06-29  1067  

:::::: The code at line 1062 was first introduced by commit
:::::: 9e86ecb7bce72a03d9992664f460e1afbd91ba19 wip: ASoC: cs42l84: Start new codec driver

:::::: TO: Martin Povišer <povik+lin@cutebit.org>
:::::: CC: Hector Martin <marcan@marcan.st>

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests

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